> Its the ham one mile away with an s6 signal report that worries me. What
> does a ham with a good antenna hear when he's located 75 feet from an active
> line?
>
> There's no place on my acre where I can be 400 feet from a power line.
>
> If they notch out all of the ham bands that would be a start. So then do you
> notch out the shortwave broadcast bands? Do you notch out for radio
> astronomy?
>
> All of the HF frequencies are spoken for and BPL can't help but interfere.
>
> SERA should share their findings as you suggest.
>
> Pat
> wa4tuk
>
> -----Original Message-----
> From: tentec-bounces@contesting.com
> [mailto:tentec-bounces@contesting.com]On Behalf Of Edward Crawford
> Sent: Tuesday, March 09, 2004 11:02 PM
> To: tentec@contesting.com
> Subject: Re: [TenTec] Information Week Article "FCC
> ChairmanVisitsBroadbandProject"
>
>
> There was a very comprehensive article about this in the most recent South
> Eastern Repeater Association's Repeater Journal magazine. Several of the
> SERA ham's were involved in the recent BPL testing conducted in the Raleigh,
> NC area. They were working with officials from both Progress Energy and the
> BPL equipment vendors and a couple hams who work for Progress Energy. The
> testing they did used both overhead and underground lines. The hams used
> mobile and fixed stations to monitor the BPL signals. For the overhead
> segments, they heard signals between 25 and 29 MHZ. The mobiles heard
> signals at S-9 near the lines but it fell off quickly as they drove away and
> was barely audible at 400 feet away from the lines. A fixed station about a
> mile away using an 80 meter dipole heard the 10 meter BPL about S-6. A ham 5
> miles away with a big beam on a 100 foot tower heard no signal.
> On the underground segments, they reported signals between 10 and 15 MHZ.
> The signals were reported to be much weaker, and were audible only within
> 100 feet of the above ground pedestal.
> They reported on a quick transmit test to see the effects on the BPL
> signals. A 5 watt FM signal on 29.6 MHZ completely disrupted the BPL signal,
> but a 100 watt FM signal only caused a momentary blip. A 100 watt CW carrier
> on 40 meters had no effect on the 10 meter BPL signal.
> It seems the BPL equipment is very frequency agile and is able to quickly
> jump around anywhere in the HF spectrum as needed.
> The bright spot in all this is that they report the power company and BPL
> providers are very cooperative and seem genuinely concerned about the
> possibility of causing interference to ham and emergency communications and
> are considering ways they can avoid or eliminate interference.
> My hat is off to the SERA for their involvement in the testing and to editor
> Gary Pearce, KN4AQ for writing such an informative article. I just wish they
> would put some of the material on their website so other hams could enjoy
> it.
> 73. Ed/w4wvw
> ----- Original Message -----
> From: al_lorona@agilent.com<mailto:al_lorona@agilent.com>
> To: tentec@contesting.com<mailto:tentec@contesting.com>
> Sent: Tuesday, March 09, 2004 8:47 PM
> Subject: RE: [TenTec] Information Week Article "FCC Chairman
> VisitsBroadbandProject"
>
>
>
> It is difficult to tell exactly because of an apparent typo in the
> article which power lines the BPL is on. It appears that the BPL signal
> does not come down the 240 V drop into the home, but comes in through
> Wi-Fi (formerly called "802.11b", the 2.4 GHz wireless LAN that can
> achieve up to 11 Mbps under ideal conditions) from a nearby hot spot.
>
> The article is so poorly written from a technical standpoint that it is
> difficult to tell exactly.
>
> BPL is now apparently deployed in Manassas, Virginia; Sault Ste. Marie,
> Ontario; Cincinnati, Ohio; and now in North Carolina. Has anybody heard
> anything about the results of any of these deployments? How bad is the
> interference? Have hams been able to disrupt the BPL with normal
> transmissions?
>
> Al W6LX
>
>
>
> > -----Original Message-----
> > From:
> tentec-bounces@contesting.com<mailto:tentec-bounces@contesting.com>
> > [mailto:tentec-bounces@contesting.com] On Behalf Of Patrick
> > A. Thompson Sr.
> > Sent: Monday, March 08, 2004 4:44 PM
> > To: tentec@contesting.com<mailto:tentec@contesting.com>
> > Subject: [TenTec] Information Week Article "FCC Chairman
> > Visits BroadbandProject"
> >
> >
> >
> > More indications of how the wind is blowing in DC.
> >
>
> http://www.informationweek.com/story/showArticle.jhtml?articleID=1831132<htt
> p://www.informationweek.com/story/showArticle.jhtml?articleID=1831132>
> 1
>
> Pat
> wa4tuk
>
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